14 Bkikrlev, Life-History of LeptospJiaria Lenianecs. 



end cells of the spore. The infection was observed, but 

 cultures could not be retained alive for a longer period 

 than two weeks. 



Dehisced spores are abundant on Levuinea shoots in 

 the vicinity of perithecia, and b\' careful maceration the 

 manner of infection may readily be seen. For more care- 



FiG. 3- 



1. Infecting hypha shewin<; appressorium and intercellular 



mode of entry. 



2. Spores germinating in asciis. 



3. Spore germination in beerwort. 



4. Spore germination in jieptone. 



X750. 



ful examination, however, infection was brought about by 

 a method similar in principle to that used by Woronin, 

 but giving more exact and controllable conditions. The 



